Today Jochanan and Primo went to the Coop in Tägipark in Wettingen to compare the prices of the products in Germany since Coop didn't want to send us a list with the prices of their products.
Lirim worked on his formula and looked up the various laws for import/export of "luxury goods" and all the German VAT regulations.
Formula:
PG = Price paid for goods in Germany in CHF
8% = VAT, charge on food, which is rebated
PCH = Price in Switzerland for the goods
0.42CHF = Transport expenses.
From our calculation
PT = opportunity cost, price you pay for using
your free time Th in hours multiplied per the unit X in CHF you
evaluate your free time from 20 CHF (minimum wage) up to 150 CHF for the
missing something very important Th * X CHF= PT
Explanation:
PG is the price in CHF paid in Germany; the 8% are VAT on food which you get back, so this is subtracted from
the costs paid abroad. 0.42CHF is the driving-cost per kilometre in Swiss
Francs, used the most sold car in Switzerland in 2013: The VW Golf, 1.4
TSI. This number changes for every car, in general, the bigger the engine and
the more expensive the car, the higher this number gets. Since it is the cost
per kilometre, the distance to the shop abroad has to be multiplied by 0.42CHF. PT is the
time invested in driving to the shop, the time it takes to do all the grocery
shopping is not relevant because it also needs to be invested in shopping in
Switzerland. The time multiplied by a number in CHF you would value your free
time, considering that, if not abroad, you have to do your grocery shopping either
way. All costs, subtracted the 8% VAT of the price paid in Germany, makes the
enumerator, which is divided by the price you would have to pay in Switzerland
for the same goods, gives us a quotient Q
and the smaller the number is, the higher is the benefit of the shopping tour.
If the quotient Q=1 or more, it means that it is not worth shopping abroad.